32_Ophiuchi

32 Ophiuchi

32 Ophiuchi

Star in the constellation Hercules

32 Ophiuchi[6] is a single[7] star located 410[1] light years away from the Sun in the constellation Hercules. It is visible to the naked eye as a dim, red-hued star with an apparent visual magnitude of 4.97.[2] This is an aging red giant star on the asymptotic giant branch[8] with a stellar classification of M3−III.[3] Having exhausted the supply of hydrogen at its core it has expanded to 60[1] times the girth of the Sun. The star is radiating 614[1] times the luminosity of the Sun from its swollen photosphere at an effective temperature of around 3,712 K.[1] It is moving further away from the Sun with a heliocentric radial velocity of +43 km/s.[2]

Quick Facts Constellation, Right ascension ...

References

  1. [1]
    Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. [2]
    Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015, S2CID 119257644.
  3. [3]
    Keenan, P.; McNeil, R. (October 1989), "The Perkins catalog of revised MK types for the cooler stars", Astrophysical Journal Supplement Series, 71: 245–266, Bibcode:1989ApJS...71..245K, doi:10.1086/191373.
  4. [4]
    Charbonnel, C.; et al. (January 2020), "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era", Astronomy & Astrophysics, 633: A34, arXiv:1910.12732, Bibcode:2020A&A...633A..34C, doi:10.1051/0004-6361/201936360, ISSN 0004-6361.
  5. [5]
    "HD 154143". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-06-19.
  6. [6]
    "HD 154143 (32 Ophiuchi) Star Facts". Universe Guide. Retrieved August 29, 2019.
  7. [7]
    Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
  8. [8]
    Eggen, Olin J. (July 1992), "Asymptotic giant branch stars near the sun", Astronomical Journal, 104 (1): 275–313, Bibcode:1992AJ....104..275E, doi:10.1086/116239.
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